﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using DataLib.DBUtility;
namespace DataLib.DAL
{
	/// <summary>
	/// 数据访问类:Goods
	/// </summary>
	public partial class Goods
	{
		public Goods()
		{}
        #region  BasicMethod

        /// <summary>
        /// 得到最大ID
        /// </summary>
        public int GetMaxId()
        {
            return DbHelperSQL.GetMaxID("id", "Goods");
        }

        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(int? id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from Goods");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)
			};
            parameters[0].Value = id;

            return DbHelperSQL.Exists(strSql.ToString(), parameters);
        }


        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(DataLib.Model.Goods model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into Goods(");
            strSql.Append("goodsName,goodsType,describe,remark,isHw)");
            strSql.Append(" values (");
            strSql.Append("@goodsName,@goodsType,@describe,@remark,@isHw)");
            strSql.Append(";select @@IDENTITY");
            SqlParameter[] parameters = {
					new SqlParameter("@goodsName", SqlDbType.NVarChar,30),
					new SqlParameter("@goodsType", SqlDbType.NVarChar,30),
					new SqlParameter("@describe", SqlDbType.NVarChar,200),
                    new SqlParameter("@remark", SqlDbType.NVarChar,500),
					new SqlParameter("@isHw", SqlDbType.Bit,1)};
            parameters[0].Value = model.goodsName;
            parameters[1].Value = model.goodsType;
            parameters[2].Value = model.describe;
            parameters[3].Value = model.remark;
            parameters[4].Value = model.isHw;

            object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }
        /// <summary>
        /// 更新一条数据
        /// </summary>
        public bool Update(DataLib.Model.Goods model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("update Goods set ");
            strSql.Append("goodsName=@goodsName,");
            strSql.Append("goodsType=@goodsType,");
            strSql.Append("describe=@describe,");
            strSql.Append("remark=@remark,");
            strSql.Append("isHw=@isHw");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@goodsName", SqlDbType.NVarChar,30),
					new SqlParameter("@goodsType", SqlDbType.NVarChar,30),
					new SqlParameter("@describe", SqlDbType.NVarChar,200),
                    new SqlParameter("@remark", SqlDbType.NVarChar,500),
					new SqlParameter("@isHw", SqlDbType.Bit,1),
					new SqlParameter("@id", SqlDbType.Int,4)};
            parameters[0].Value = model.goodsName;
            parameters[1].Value = model.goodsType;
            parameters[2].Value = model.describe;
            parameters[3].Value = model.remark;
            parameters[4].Value = model.isHw;
            parameters[5].Value = model.id;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Delete(int? id)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from Goods ");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)
			};
            parameters[0].Value = id;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        /// <summary>
        /// 批量删除数据
        /// </summary>
        public bool DeleteList(string idlist)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from Goods ");
            strSql.Append(" where id in (" + idlist + ")  ");
            int rows = DbHelperSQL.ExecuteSql(strSql.ToString());
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }


        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public DataLib.Model.Goods GetModel(int? id)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("select  top 1 id,goodsName,goodsType,describe,remark,isHw from Goods ");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)
			};
            parameters[0].Value = id;

            DataLib.Model.Goods model = new DataLib.Model.Goods();
            DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
            if (ds.Tables[0].Rows.Count > 0)
            {
                return DataRowToModel(ds.Tables[0].Rows[0]);
            }
            else
            {
                return null;
            }
        }


        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public DataLib.Model.Goods DataRowToModel(DataRow row)
        {
            DataLib.Model.Goods model = new DataLib.Model.Goods();
            if (row != null)
            {
                if (row["id"] != null && row["id"].ToString() != "")
                {
                    model.id = int.Parse(row["id"].ToString());
                }
                if (row["goodsName"] != null)
                {
                    model.goodsName = row["goodsName"].ToString();
                }
                if (row["goodsType"] != null)
                {
                    model.goodsType = row["goodsType"].ToString();
                }
                if (row["describe"] != null)
                {
                    model.describe = row["describe"].ToString();
                }
                if (row["remark"] != null)
                {
                    model.remark = row["remark"].ToString();
                }
                if (row["isHw"] != null && row["isHw"].ToString() != "")
                {
                    if ((row["isHw"].ToString() == "1") || (row["isHw"].ToString().ToLower() == "true"))
                    {
                        model.isHw = true;
                    }
                    else
                    {
                        model.isHw = false;
                    }
                }
            }
            return model;
        }

        /// <summary>
        /// 获得数据列表
        /// </summary>
        public DataSet GetList(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select id,goodsName,goodsType,describe,remark,isHw ");
            strSql.Append(" FROM Goods ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            return DbHelperSQL.Query(strSql.ToString());
        }

        /// <summary>
        /// 获得前几行数据
        /// </summary>
        public DataSet GetList(int Top, string strWhere, string filedOrder)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select ");
            if (Top > 0)
            {
                strSql.Append(" top " + Top.ToString());
            }
            strSql.Append(" id,goodsName,goodsType,describe,remark,isHw ");
            strSql.Append(" FROM Goods ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            strSql.Append(" order by " + filedOrder);
            return DbHelperSQL.Query(strSql.ToString());
        }

        /// <summary>
        /// 获取记录总数
        /// </summary>
        public int GetRecordCount(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) FROM Goods ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            object obj = DbHelperSQL.GetSingle(strSql.ToString());
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }
        /// <summary>
        /// 分页获取数据列表
        /// </summary>
        public DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("SELECT * FROM ( ");
            strSql.Append(" SELECT ROW_NUMBER() OVER (");
            if (!string.IsNullOrEmpty(orderby.Trim()))
            {
                strSql.Append("order by T." + orderby);
            }
            else
            {
                strSql.Append("order by T.id desc");
            }
            strSql.Append(")AS Row, T.*  from Goods T ");
            if (!string.IsNullOrEmpty(strWhere.Trim()))
            {
                strSql.Append(" WHERE " + strWhere);
            }
            strSql.Append(" ) TT");
            strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
            return DbHelperSQL.Query(strSql.ToString());
        }

        /*
        /// <summary>
        /// 分页获取数据列表
        /// </summary>
        public DataSet GetList(int PageSize,int PageIndex,string strWhere)
        {
            SqlParameter[] parameters = {
                    new SqlParameter("@tblName", SqlDbType.VarChar, 255),
                    new SqlParameter("@fldName", SqlDbType.VarChar, 255),
                    new SqlParameter("@PageSize", SqlDbType.Int),
                    new SqlParameter("@PageIndex", SqlDbType.Int),
                    new SqlParameter("@IsReCount", SqlDbType.Bit),
                    new SqlParameter("@OrderType", SqlDbType.Bit),
                    new SqlParameter("@strWhere", SqlDbType.VarChar,1000),
                    };
            parameters[0].Value = "Goods";
            parameters[1].Value = "id";
            parameters[2].Value = PageSize;
            parameters[3].Value = PageIndex;
            parameters[4].Value = 0;
            parameters[5].Value = 0;
            parameters[6].Value = strWhere;	
            return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
        }*/

        #endregion  BasicMethod
		#region  ExtensionMethod
        /// <summary>
        /// 根据code获得id
        /// </summary>
        /// <param name="goodsCode"></param>
        /// <returns></returns>
        public int GetgoodsID(string goodsCode)
        {
            int goodsid = 0;
            DataTable dt = GetList(" goodsName='" + goodsCode + "'").Tables[0];
            if (dt != null && dt.Rows.Count > 0)
            {
                goodsid = int.Parse(dt.Rows[0]["id"].ToString());
            }
            return goodsid;
        }
		#endregion  ExtensionMethod
	}
}

